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EC number: 214-046-6 | CAS number: 1074-82-4
- Life Cycle description
- Uses advised against
- Endpoint summary
- Appearance / physical state / colour
- Melting point / freezing point
- Boiling point
- Density
- Particle size distribution (Granulometry)
- Vapour pressure
- Partition coefficient
- Water solubility
- Solubility in organic solvents / fat solubility
- Surface tension
- Flash point
- Auto flammability
- Flammability
- Explosiveness
- Oxidising properties
- Oxidation reduction potential
- Stability in organic solvents and identity of relevant degradation products
- Storage stability and reactivity towards container material
- Stability: thermal, sunlight, metals
- pH
- Dissociation constant
- Viscosity
- Additional physico-chemical information
- Additional physico-chemical properties of nanomaterials
- Nanomaterial agglomeration / aggregation
- Nanomaterial crystalline phase
- Nanomaterial crystallite and grain size
- Nanomaterial aspect ratio / shape
- Nanomaterial specific surface area
- Nanomaterial Zeta potential
- Nanomaterial surface chemistry
- Nanomaterial dustiness
- Nanomaterial porosity
- Nanomaterial pour density
- Nanomaterial photocatalytic activity
- Nanomaterial radical formation potential
- Nanomaterial catalytic activity
- Endpoint summary
- Stability
- Biodegradation
- Bioaccumulation
- Transport and distribution
- Environmental data
- Additional information on environmental fate and behaviour
- Ecotoxicological Summary
- Aquatic toxicity
- Endpoint summary
- Short-term toxicity to fish
- Long-term toxicity to fish
- Short-term toxicity to aquatic invertebrates
- Long-term toxicity to aquatic invertebrates
- Toxicity to aquatic algae and cyanobacteria
- Toxicity to aquatic plants other than algae
- Toxicity to microorganisms
- Endocrine disrupter testing in aquatic vertebrates – in vivo
- Toxicity to other aquatic organisms
- Sediment toxicity
- Terrestrial toxicity
- Biological effects monitoring
- Biotransformation and kinetics
- Additional ecotoxological information
- Toxicological Summary
- Toxicokinetics, metabolism and distribution
- Acute Toxicity
- Irritation / corrosion
- Sensitisation
- Repeated dose toxicity
- Genetic toxicity
- Carcinogenicity
- Toxicity to reproduction
- Specific investigations
- Exposure related observations in humans
- Toxic effects on livestock and pets
- Additional toxicological data
Biodegradation in water: screening tests
Administrative data
Link to relevant study record(s)
- Endpoint:
- biodegradation in water: ready biodegradability
- Type of information:
- (Q)SAR
- Adequacy of study:
- weight of evidence
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- results derived from a valid (Q)SAR model and falling into its applicability domain, with limited documentation / justification
- Justification for type of information:
- The supporting QMRF report has been attached
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 301 B (Ready Biodegradability: CO2 Evolution Test)
- Principles of method if other than guideline:
- The data is predicted using the OECD QSAR toolbox version 3.3.
- GLP compliance:
- not specified
- Specific details on test material used for the study:
- - Name of test material (as cited in study report): Potassium phthalimide
- Molecular formula (if other than submission substance): C8H5NO2.K
- Molecular weight (if other than submission substance): 185.223 g/mol
- Smiles notation (if other than submission substance): c12c(C(=O)[NH-]C1=O)cccc2.[K+]
- InChI: 1S/C8H5NO2.K/c10-7-5-3-1-2-4-6(5)8(11)9-7;/h1-4H,(H,9,10,11);/q;+1/p-1
- Substance type: Organic
- Physical state: solid - Oxygen conditions:
- aerobic
- Inoculum or test system:
- activated sludge (adaptation not specified)
- Duration of test (contact time):
- 28 d
- Parameter followed for biodegradation estimation:
- CO2 evolution
- Key result
- Parameter:
- % degradation (CO2 evolution)
- Value:
- 29.961
- Sampling time:
- 28 d
- Remarks on result:
- other: Other details not known
- Details on results:
- Test substance undergoes 29.96% degradation by CO2 evolution parameter in 28 days.
- Validity criteria fulfilled:
- not specified
- Interpretation of results:
- not readily biodegradable
- Conclusions:
- The test chemical Potassium phthalimide was estimated to be not readily biodegradable in water.
- Executive summary:
Biodegradability of Potassium phthalimide (CAS no. 1074 -82 -4) is predicted using QSAR toolbox version 3.3. Test substance undergoes 29.96% degradation by CO2 evolution parameter in 28 days. Thus, based on percentage degradation, the test chemical Potassium phthalimide was estimated to be not readily biodegradable in water.
Reference
The
prediction was based on dataset comprised from the following
descriptors: "CO2 evolution"
Estimation method: Takes average value from the 6 nearest neighbours
Domain logical expression:Result: In Domain
(((((((("a"
or "b" or "c" or "d" or "e" )
and ("f"
and (
not "g")
)
)
and "h" )
and "i" )
and "j" )
and ("k"
and (
not "l")
)
)
and ("m"
and (
not "n")
)
)
and ("o"
and "p" )
)
Domain
logical expression index: "a"
Referential
boundary: The
target chemical should be classified as Imides (Acute toxicity) by
US-EPA New Chemical Categories
Domain
logical expression index: "b"
Referential
boundary: The
target chemical should be classified as Aryl AND Fused carbocyclic
aromatic AND Fused saturated heterocycles AND Imide by Organic
Functional groups
Domain
logical expression index: "c"
Referential
boundary: The
target chemical should be classified as Aryl AND Fused carbocyclic
aromatic AND Fused saturated heterocycles AND Imide AND Overlapping
groups by Organic Functional groups (nested)
Domain
logical expression index: "d"
Referential
boundary: The
target chemical should be classified as Amide, aromatic attach [-C(=O)N]
AND Aromatic Carbon [C] AND Carbonyl, olefinic attach [-C(=O)-] AND
Carbonyl, one aromatic attach [-C(=O)-] AND Miscellaneous sulfide (=S)
or oxide (=O) AND Nitrogen, two or tree olefinic attach [>N-] AND
Olefinic carbon [=CH- or =C<] by Organic functional groups (US EPA)
Domain
logical expression index: "e"
Referential
boundary: The
target chemical should be classified as Anion AND Aromatic compound AND
Carbonic acid derivative AND Carboxylic acid derivative AND Cation AND
Heterocyclic compound by Organic functional groups, Norbert Haider
(checkmol)
Domain
logical expression index: "f"
Referential
boundary: The
target chemical should be classified as No alert found by DNA binding by
OECD
Domain
logical expression index: "g"
Referential
boundary: The
target chemical should be classified as Michael addition OR Michael
addition >> P450 Mediated Activation to Quinones and Quinone-type
Chemicals OR Michael addition >> P450 Mediated Activation to Quinones
and Quinone-type Chemicals >> Hydroquinones OR SN1 OR SN1 >> Iminium Ion
Formation OR SN1 >> Iminium Ion Formation >> Aliphatic tertiary amines
OR SN1 >> Nitrenium Ion formation OR SN1 >> Nitrenium Ion formation >>
Primary aromatic amine OR SN2 OR SN2 >> SN2 at an sp3 Carbon atom OR SN2
>> SN2 at an sp3 Carbon atom >> Phosphates by DNA binding by OECD
Domain
logical expression index: "h"
Referential
boundary: The
target chemical should be classified as weeks - months by Biodeg
ultimate (Biowin 3) ONLY
Domain
logical expression index: "i"
Referential
boundary: The
target chemical should be classified as Biodegrades Fast by Biodeg
probability (Biowin 2) ONLY
Domain
logical expression index: "j"
Referential
boundary: The
target chemical should be classified as Bioavailable by Lipinski Rule
Oasis ONLY
Domain
logical expression index: "k"
Referential
boundary: The
target chemical should be classified as Alkali Earth AND Non-Metals by
Groups of elements
Domain
logical expression index: "l"
Referential
boundary: The
target chemical should be classified as Halogens by Groups of elements
Domain
logical expression index: "m"
Referential
boundary: The
target chemical should be classified as Group 1 - Alkali Earth
Li,Na,K,Rb,Cs,Fr AND Group 14 - Carbon C AND Group 15 - Nitrogen N AND
Group 16 - Oxygen O by Chemical elements
Domain
logical expression index: "n"
Referential
boundary: The
target chemical should be classified as Group 16 - Sulfur S by Chemical
elements
Domain
logical expression index: "o"
Parametric
boundary:The
target chemical should have a value of Molecular weight which is >= 169
Da
Domain
logical expression index: "p"
Parametric
boundary:The
target chemical should have a value of Molecular weight which is <= 307
Da
Description of key information
Biodegradability of Potassium phthalimide (CAS no. 1074 -82 -4) is predicted using QSAR toolbox version 3.3 (2017). Test substance undergoes 29.96% degradation by CO2 evolution parameter in 28 days. Thus, based on percentage degradation, the test chemical Potassium phthalimide was estimated to be not readily biodegradable in water.
Key value for chemical safety assessment
- Biodegradation in water:
- under test conditions no biodegradation observed
Additional information
In different studies, Potassium phthalimide (CAS No. 1074 -82 -4) has been investigated for potential for biodegradation to a greater or lesser extent. These include 2 predicted data for the target compound Potassium phthalimide and the 1 study (from authoritative database) for its closest read across substance with logKow as the primary descriptor.
In a predicted data done by SSS (2017) using OECD QSAR toolbox version 3.3 with logKow as the primary descriptor, percentage biodegradability of test chemical Potassium phthalimide (CAS no. 1074 -82 -4) was estimated. Test substance undergoes 29.96% degradation by CO2 evolution parameter in 28 days. Thus, based on percentage degradation, the test chemical Potassium phthalimide was estimated to be not readily biodegradable in water.
Another prediction was done using the Estimation Programs Interface Suite (EPI suite, 2017) for estimating the biodegradation potential of the test compound Potassium phthalimide (CAS no. 1074 -82 -4)in the presence of mixed populations of environmental microorganisms.The biodegradability of the substance was calculated using seven different models such as Linear Model, Non-Linear Model, Ultimate Biodegradation Timeframe, Primary Biodegradation Timeframe, MITI LInear Model, MITI Non-Linear Model and Anaerobic Model (called as Biowin 1-7, respectively) of the BIOWIN v4.10 software. The results indicate that Potassium phthalimide is expected to be not readily biodegradable.
In an additional supporting weight of evidence studyof read acrosssubstance1,2,3,6-Tetrahydrophthalimide (CAS no. 85-40-5)from authoritative database (J-CHECK, 2016), biodegradation experiment was conducted for 28 days forevaluating the percentage biodegradability of read across substance 1,2,3,6-Tetrahydrophthalimide. Concentration of inoculum i.e, sludge used was 30 mg/l and initial test substance conc. used in the study was 100 mg/l. The percentage degradation of read across substance1,2,3,6-Tetrahydrophthalimidewas determined to be0, 3 and 8% degradation by BOD, TOC removal and HPLC parameter in 28 days, respectively.Thus, based on percentage degradation,1,2,3,6-Tetrahydrophthalimidewas considered to be not readily biodegradable in nature.
On the basis of above results for target chemical Potassium phthalimide (from OECD QSAR toolbox version 3.3 and EPI suite, 2017) and for its read across substance (from authoritative database J-CHECK), it can be concluded that the test substance Potassium phthalimide can be expected to be not readily biodegradable in nature.
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